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有如下程序:include using namespace std;class AA{public: virtual void f() {cout<
有如下程序: #include <iostream> using namespace std; class AA { public: virtual void f() { cout<< "AA"; } }; class BB : public AA { public: BB() { cout << "BB"; } }; cla
A.AA
B.AABBCC
C.BBAABBCC
D.BBBBAACC
参考答案
更多 “ 有如下程序:include using namespace std;class AA{public: virtual void f() {cout 有如下程序: #include <iostream> using namespace std; class AA { public: virtual void f() { cout<< "AA"; } }; class BB : public AA { public: BB() { cout << "BB"; } }; claA.AAB.AABBCCC.BBAABBCCD.BBBBAACC ” 相关考题
考题
有如下程序: include using namespace std; class A { public: virtual void f(){cout
有如下程序:include<iostream>using namespace std;class A{public:virtual void f(){cout<<"1";}};class B:public A{public:B (){cout<<"2";}};class C:public B{public:virtual void f(){B::f();cout<<"3";}};int main(){A aa,*p;B bb;C cc;p=cc;p->f();return 0;}执行上面程序的输出是______。
考题
有如下程序:includeusing namespace std;Class Base{public:Base(){cout
有如下程序: #include<iostream.h> using namespace std; Class Base { public: Base(){cout<<“BB”;f();} void{(){cout<<“BF”;} }; class Derived:public Base { public: Derived(){cout<<“DD”;} void f(){cout<<“Df”;) }; int mainA.BBBfDDB.BBDfDDDfC.DDD.DDBBBf
考题
有如下程序: include using namespace std; class ONE { public: virtual void f() {
有如下程序:include <iostream>using namespace std;class ONE{public:virtual void f() { cout << "1"; }};class TWO: public ONE{public:TWO() { cout << "2"; }};class THREE: public TWO{public:virtual void f() {TWO::f(); cout << "3"; }};int main(){ONE aa, *p;TWO bb;THREE cc;p=cc;P->f();return 0;}执行上面程序的输出是【 】。
考题
有如下程序:include using namespace std;class Base{public:Base(){ cout
有如下程序: #include <iostream> using namespace std; class Base { public: Base(){ cout<<"BB";f(); } void f() { cout<<"Bf";} }; class Derived:public Base { public: Derived() { cout<<"DD"; } void f(){ cout<<"Df"; } }; int main(){ Derived d; return 0;}执行上面的程序将输出______ 。A.BBBfDDB.BBDfDDDfC.DDD.DDBBBf
考题
有如下程序:includeincludeusing namespace std;class BASE{char c;public
有如下程序: #include<iostream>#include<iosream> using namespace std; class BASE{ char c; public; BASE(char n):c(n){} virtual ~ BASE(){cout<<c;} }; class DERIVED; public BASE{ char c; public: DERIVED (char n): BASE (n+1)A.XYB.YXC.XD.Y
考题
有如下程序: include using namespaee std; class A{ public: A( ){cout
有如下程序:include<iostream>using namespaee std;class A{public:A( ){cout<<"A";}~A( ){cout<<"A";}};class B{A a;public:B( ){cout<<"B";}~B( )t cout<<"B";}};int main( ){B b;return 0;}程序的输出结果是______。
考题
有如下程序: inClude using namespace std; class AA { public: viltual void f() { c
有如下程序:inClude<iostream>using namespace std;class AA{public:viltual void f(){cout<<"AA";}};class BB:public AA{public:BB(){cout<<"BB";}};class CC:public BB{public:virtual void f(){BB::f();cout<<"CC";}};int main(){AA aa,*p;BB bb;CC cc;p=cc;p->f();return 0;}运行后的输出结果【 】。
考题
有如下程序:includeusing namespace std;class B{public:Virtual void show(){cout
有如下程序: #include<iostream> using namespace std; class B{ public: Virtual void show(){cout<<“B”;} }; class D:publicB{ public: void show(){cout<<“D”;} }; void funl(B*ptr){ptr->show();} void{un2(Bref){ref.show();} voidA.BBBB.BBDC.DBBD.DBD
考题
阅读下列说明和C++代码,填写程序中的空(1)~(6),将解答写入答题纸的对应栏内。
【说明】
以下C++代码实现一个简单绘图工具,绘制不同形状以及不同颜色的图形。部分类及其关系如图6-1所示。
【C++代码】
#include?#include?using?namespace?std;class?DrawCircle?{??????//绘制圆形,抽象类? ? ? public: (1);//定义参数为?int?radius,?int?x,?inty? ?virtual~DrawCircle()?{?}};class?RedCircle:public?DrawCircle?{????//绘制红色圆形? ? ? ? public: void?drawCircle(intradius,?int?x,?int?y)?{cout??drawCircle?=?drawCircle;? }? ?virtual~shape()?{?}? public:? ?virtual?void?draw()?=?0;};class?Circle:public?Shape?{????//圆形? ? private:? ? ?int?x,y,radius;? ? public:? Circle(int?x,inty,int?radius,DrawCircle?*drawCircle)? (3)? {? this->x?=?x;? ?this->y?=?y;? ? this->radius?=?radius; }? ? ? public:? void?draw(){? drawCircle?-> (4); }};int?main(){Shape?*redCirclenew?Circle(100,100,10,????(5)????);//绘制红色圆形? Shape?*greenCircle=new?Circle(100,100,10, (6)??);//绘制绿色圆形redCircle >draw();? ?greenCircle?->draw();? ?return?0;}
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